The exact value of indicated trigonometric function, sin θ is -0.92
How to find a sine relation when a cosine relation is given?The sine relation is the ratio of the height to the hypotenuse. Meanwhile, the cosine relation is the ratio of the base to the hypotenuse.
The relation of sine and cosine is given as follows:
[tex]\sin \theta=\pm\sqrt{1-\cos^2\theta}[/tex]
It is given that cos θ = (2/5)
So, the sine value can be obtained from the given value.
[tex]\sin \theta=\pm\sqrt{1-\cos^2\theta}\\=\pm\sqrt{1-(2/5)^2}\\=\pm\sqrt{21}/5\\ =-0.92[/tex]
So, the sine value for the given cosine value is - [tex]\sqrt{21}/5[/tex] or -0.92.
Note that we omitted the positive value because it is given that the tangent value is negative, so the angle lies in the fourth quadrant, where the sine value is also negative.
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Which of the following boxes should replace the question mark (?) to complete the pattern?
The most appropriate choice for pattern will be given by
Option E is the correct option
What is pattern?
Repeated arrangement of number or shape is called pattern.
Here,
Let the boxes be counted row wise
The question is all about filling all the blank boxes with orange colour.
Let the pattern be solved column wise
In the first column,
In first figure
The 2nd, 3rd and 4th boxes are filled with orange colour
Then in the second figure 5th box is filled with orange colour
To complete filling all the boxes with orange colour, 1st, 6th, 7th, 8th and 9th boxes are left. That is shown in the third figure.
In the third column
In first figure
The 5th, 6th and 9th boxes are filled with orange colour
Then in the second figure
1st, 2nd, 4th, 7th and 8th boxes are filled with orange colour
To complete filling all the boxes with orange colour, only the 3rd box is left
That is shown in third figure
Now, in the second column,
In the first figure,
1st, 7th and 8th boxes are filled with orange colour.
Then in the second figure 3rd, 6th and 9th are filled with orange colour
To complete filling all the boxes with orange colour, 2nd, 4th and 5th boxes are left.
That is shown in option E
So option E is correct
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A line passes through the point (-4,-6) and has a slope of 5/4. Write an equation in slope-intercept form for this line.
Answer:
y = [tex]\frac{5}{4}[/tex] x - 1
Step-by-step explanation:
the equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
here m = [tex]\frac{5}{4}[/tex] , then
y = [tex]\frac{5}{4}[/tex] x + c ← is the partial equation
to find c substitute (- 4, - 6 ) into the partial equation
- 6 = - 5 + c ⇒ c = - 6 + 5 = - 1
y = [tex]\frac{5}{4}[/tex] x - 1 ← equation of line
You are the owner of Caché, a chain of women's clothing boutiques. Your state has a sales tax of 7%, and your city has an additional sales tax of 1.5%. Each quarter you are responsible for making these tax deposits to the city and state. Last quarter your stores had total revenue, including sales tax, of $271,250.
(a) 250000 of this revenue was sales and $11250 much was sales tax. (b) $11250 of sales tax should be sent to the city and $3750 sales tax should be sent to the state.
Let us assume that the total sales are $X.
According to the given situation, 7% is the sales tax and an additional state sales tax of 1.5% will be charges on the sales.
The total revenue including sales tax is $271250.
(a) Total revenue = sales + total sales tax
So, we can write,
X + X(7+1.5)% = 271250
Solving further,
X + X(8.5%) = 271250
X + 8.5X/100 = 271250
108.5X = 271250×100
X = 250000
Total sales is $250000.
Total sales tax is $(2710250-250000)
Total sales tax is $21250.
(b) Total sales is $250000.
Tax charges by city is 7%.
Using percentage formula,
Percentage of tax = Total tax amount/Total sales amount × 100
Putting all the values,
7 = Total tax amount/250000 × 100
Total tax amount = 7 × 2500
Total tax amount = 17500 dollars.
Total amount to be sent to the city is 175000$.
(c) Total sales is $250000.
Tax charges by city is 1.5%.
Using percentage formula,
Percentage of tax = Total tax amount/Total sales amount × 100
Putting all the values,
1.5 = Total tax amount/250000 × 100
Total tax amount = 1.5 × 2500
Total tax amount = 3750 dollars.
Total amount to be sent to the city is 175000$.
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simplified 4/16 (all fractions)
Answer:
The greatest common factor (GCF) of the numerator (4) and the denominator (16) is 4
GCF(4,16) = 4
4/16 = 4 ÷ 4/16 ÷ 4
= 1/4
hope it helps you
How do I solve this exponential function using logarithms, it says if necessary you can round to the nearest hundredth, please show work!
The given equation is
[tex](x+7)=(2x-1)[/tex]At first, we have to isolate x on one side and the numerical term on the other side, then
Add 1 to both sides
[tex]\begin{gathered} x+7+1=2x-1+1 \\ x+8=2x \end{gathered}[/tex]Subtract x from both sides
[tex]\begin{gathered} x-x+8=2x-x \\ 8=x \end{gathered}[/tex]The solution of the equation is x = 8
g(x)=-3x-1 What is g(10
A function is a relation that gives one input for every one output thus the value of g(10) is -31.
What is a function?A certain kind of relationship called a function binds inputs to essentially one output.
The machine will only accept specified inputs, described as the function's domain, and will potentially produce one output for each input.
As per the given function,
g(x) = -3x - 1
The value of the function at x = 10
g(10) = -3(10) - 1
g(10) = -30 - 1 = -31
Hence "A function is a relation that gives one input for every one output thus the value of g(10) is -31".
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2.8-4.4n-2n+7QUICKLY BRAINLY IF CORRECT
Answer
2.8 - 4.4n - 2n + 7 = 9.8 - 6.4n
Explanation
To answer this, we just bring the terms with n together and the terms without together too.
2.8 - 4.4n - 2n + 7
= 2.8 + 7 - 4.4n - 2n
= 9.8 - 6.4n
Hope this Helps!!!
write in slope-intercept form an equation of the line that passes thorugh the given points.(1,2), ( -2, -1)
Determine the equation of line passing through two points.
[tex]\begin{gathered} y-2=\frac{-1-2}{-2-1}(x-1) \\ y-2=-\frac{3}{-3}(x-1) \\ y-2=x-1 \\ y=x+1 \end{gathered}[/tex]So equation of line is,
[tex]y=x+1[/tex]Select the correct answer.
Which expression is equivalent to ³+2+3 if no denominator equals zero?
=+1
OA.
3
B.
+3
OC. 2-3
OD. +
The second expression 1/(x^2 - 4x + 3) is equivalent to the given expression.
What are the equivalent expression?
Expressions that are equivalent do the same thing even when they have distinct appearances. When we enter the same value(s) for the variable, two algebraic expressions that are equivalent have the same value (s).
Consider the given expression,
((x + 3) / (x^2 - 2x - 3)) / ((x^2 + 2x -3)/ (x + 1))
We can write the expression as,
((x + 3) / (x^2 - 2x - 3)) x ((x + 1) / (x^2 + 2x -3))
Rewrite the equation x^2 - 2x - 3 and x^2 + 2x -3 as,
x^2 - 2x - 3 = x^2 - 3x + x - 3 = (x - 3)(x + 1)
x^2 + 2x - 3 = x^2 + 3x - x - 3 = (x + 3)(x - 1)
plug these values in the above expression, we get
((x + 3) / ((x - 3)(x + 1)) x ((x + 1) / ((x + 3)(x - 1))
After solving this, we get
1 / ((x - 3)(x - 1) = 1 / (x^2 - 4x + 3)
Therefore, the second expression is equivalent to the given expression.
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helppppppppppp meeeeeeeeeeeeeee
Answer:
A. f(-2) = 13
B. f(0) = 1
C. f(7) = -41
Step-by-step explanation:
f(x) = 1 - 6x
A.
f(-2) = 1 - 6(-2)
f(-2) = 1 + 12
f(-2) = 13
B.
f(0) = 1 - 6(0)
f(0) = 1
C.
f(7) = 1 - 6(7)
f(7) = 1 - 6(7
f(7) = -41
I hope this helps!
Find g(x), where g(x) is the translation 4 units down of f(x)=x.
Write your answer in the form mx+b, where m and b are integers.
(Will mark best answer brainliest)
Answer:
g(x) + 4 = x
g(x) = x - 4 which is probably the answer you should submit.
Step-by-step explanation:
Givens
f(x) = x
g(x) +4 = f(x)
Comment
f(x) and g(x) are forms of y or z. What they mean is that whatever x is on the left, it will be make the same on the right. It is just a short hand to help you in defining the y value.
If you want to move down, The y value is the one to notice. Notice that it is not intuitive. If you want to go down the sign on y + 4 = x is the equation you use. It is the exact opposite of what you think it should be. The graph below should help you.
The red line is f(x) = x
The blue line is g(x) + 4 = x.
The blue line can be written as g(x) = x - 4 which would be more inetuitive.
Write the correct equation for the following statement.
You decide to rent a limo for prom. The rate is $175 plus $5 per mile
traveled. Write an equation to calculate your total cost (c) at the end of the evening for a given number of miles (m).
If you travel 45 miles what will be your total bill at the end
of the evening?
Answer:
Step-by-step explanation:
If I did the math right! The bill should be $400.00
How I did it, was I did 175+5x45.
seeing, it is $5 per mile! And the total miles you got was 45.
If I missed something, please let me know
I have a practice problem that I need answered, can someone help and explain?
Given:-
[tex]\begin{gathered} A=\begin{bmatrix}{-3} & {5} & {2} \\ {8} & {-1} & {3} \\ {} & {} & \end{bmatrix} \\ \end{gathered}[/tex]Now to find the value of,
[tex]-2R_2+3R_1[/tex]So by simplyfying according to the given elementary row operation,
3 sisters age combined are 57. Jenny is 6 years
older then Lynn. Kim is 5 less then twice the age of
Lynn age. What are each sisters ages
Answer:
Step-by-step explanation:
Jenny is 20 years old
Lynn is 14 years old
Kim is 23 years old
The least positive number x for which cos x = 0 is "blank"
enter your response here.
(Type an exact answer, using as needed. Use integers or fractions for any numbers in the expression.) TUSM!!!!!
The least positive number x for which cos x = 0 is 1.
The given trigonometric equation is cos x=0.
What is the trigonometric equation?A trigonometric equation is one that involves one or more of the six functions sine, cosine, tangent, cotangent, secant, and cosecant. Some trigonometric equations, like x = cos x, can be solved only numerically, through successive approximations.
Now, cos x = 0
So, [tex]x=cos^{-1}(0)[/tex]
⇒ x = 1
Therefore, the least positive number x for which cos x = 0 is 1.
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please help with this practice question
Define a variable, set up an equation, then solve. the sum of two numbers 146. the larger number is 16 less than five times the smaller number. find both numbers.
The smaller number = 27
The larger number = 119
Explanations:Let the smaller number be x
Let the larger number be y
The sum of the two numbers is 146
x + y = 146..............(1)
The larger number is 16 less than five times the smaller number
y = 5x - 16.............(2)
Substitute equation (2) into equation (1)
x + (5x - 16) = 146
x + 5x - 16 = 146
6x = 146 + 16
6x = 162
x = 162/6
x = 27
Substitute the value of x into equation (2)
y = 5(27) - 16
y = 135 - 16
y = 119
The smaller number = 27
The larger number = 119
The projected profit (in thousands of dollars) of a new technology company in year t can be modeled by the polynomial 2t2 - 9t - 18
When the company will break even (have zero profit)? Show all work necessary to justify your answer.
The projected profit (in thousands of dollars) in year t of a newly developed line of business can be modeled by the monomial t3 . Write a polynomial that models the company’s total profit including this new line of business.
How many years sooner will the company break even with the new line of business? Show all work necessary to justify your answer.
a. The company will break even in 6 years
b. The total profit with the newly developed line of business is:
[tex]t^3+2t^2-9t-18[/tex]c. The company will break even 3 years sooner
Explanation:The projected profit is given as:
[tex]2t^2-9t-18[/tex]a. The company will break even when the profit is zero. That is;
[tex]\begin{gathered} 2t^2-9t-18=0 \\ \\ (2t+3)(t-6)=0 \\ 2t+3=0 \\ \Rightarrow t=-\frac{3}{2} \\ \\ t-6=0 \\ t=6 \end{gathered}[/tex]6 is the realistic number of years (As we cannot have -3/2 years).
We conclude that they will break even in 6 years
b. The projected profit of a newly developed line of business is:
[tex]t^3[/tex]The total profit is now;
[tex]t^3+2t^2-9t-18[/tex]The company will break even with this new line of business as follows:
[tex]\begin{gathered} t^3+2t^2-9t-18=0 \\ (t+2)(t+3)(t-3) \\ t+2=0 \\ \Rightarrow t=-2 \\ t+3=0 \\ \Rightarrow t=-3 \\ t-3=0 \\ \Rightarrow t=3 \end{gathered}[/tex]We choose t = 3 (because we cannot have -2 years or -3 years)
The difference between this and the previous time is 6 - 3 = 3 years
The company will break even 3 years sooner
use the data in the following table, which lists drive-thru order accuracy at popular fast food chains. Assume that orders are randomly selected from those included in the table. If two orders are selected, find the probability that they are both accurate. Complete parts (a) and (b) below.
a. Assume that the selections are made with replacement. Are the events independent?
The probability is __. The events __ (are, are not) independent.
(Do not round until the final answer. Round to four decimal places as needed.)
Answer:
a. If the selection is made with replacement, they are NOT independent because they affect each other.
b. The probability of selecting TWO accurate orders is .7157 and the events ARE independent.
Step-by-step explanation:
Add the accurate orders:
315+273+248+125=961
Add the inaccurate orders:
38+56+37+17=148
148/961=0.1540 probability of getting ONE inaccurate order
1.0-0.1540=0.846 probability of selecting ONE accurate order
0.846 * 0.846 = 0.7157 the probability of selecting TWO accurate orders
Therefore, the probability is .7157 and the events ARE independent.
he graphs of the functions and are shown below. For each graph, find the absolute maximum and absolute minimum.
From the given graph
The graph of g has an arrow with the left end it goes up, then
The absolute maximum of g is NONE
The graph of g has a minimum point (4, -4), then
The absolute minimum is -4
The graph of h has a maximum point (-4, 4), then
The absolute maximum is 4
The graph of h has a minimum point (-1, -4), then
The absolute minimum is -4
i can provide a better picture if needed but i only need help with b
Taking a look at the graph, we can notice that point (7000,2875.99) is highlighted.
Using this point, we can conclude that the cost of talking 7000 minutes is $2875.99
THIS IS URGENT!!!! PLEASE HELP!!!
The amount of flour needed for 72 cookies is 4.5 cups.
46 / 69 and 48/84 are not proportional because the fractions in their simplest forms are 3/4 and 4/7.
The value of x in 2/3 = 1.2 / x is 1.8.
The value of x in 8 / 15 = 24 / x is 45.
7 / 5 ≠ 15 / 10.
6 / 8 = 15/20
What are the solutions?In order to determine how many cups of flour is needed for 72 cookies, determine how many cups is needed for one cookies.
Amount of flour needed for one cookie = 3/48
Now, multiply this fraction by 72: 3/48 x 72 = 4.5 cups
If two fractions are proportional, when they are expressed in their simplest form, both fractions would have equal values.
46 / 69 = 2 / 3
48 / 84 = 4/7
Given this equation : 2/3 = 1.2 / x
In order to determine the value of x, cross multiply:
2x = 3 x 1.2
2x = 3.6
x = 3.6 / 2
x = 1.8
Given this equation : 8 / 15 = 24 / x
In order to determine the value of x, cross multiply:
8x = 24 x 15
8x = 360
x = 360 / 8
x = 45
7/5 and 15 / 10
7/5 = 15 /10
The cross product:
(7 x 10) = (5 x 15)
70 ≠ 75
6 / 8 = 15/20
The cross product : (6 x 20) = (8 x 15)
120 = 120
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Last week, Lisa sold 20 hand-engraved watch bands, earning a total profit of $105.00.She plans to make 50 engraved watch bands to sell at the community art fair. If shesells all 50 watch bands, how much profit can Lisa expect to earn?
In this case, we'll have to carry out several steps to find the solution.
Step 01:
data:
hand-engraved watch bands:
total watch bands = 20
total profit = $105.00
Step 02:
ratio:
total profit (50 watch bands):
[tex]50\text{ watch bands * }\frac{\text{ \$ 105.00}}{20\text{ watch bands}}\text{ = \$ 262.50 }[/tex]The answer is:
$ 262.50
A vehicle travels 426 kilometers in 6 hours. Find the unit rate
Kilometers per hour
Compare 2x + 8 > 18 and 2c +8 < 18.
The given inequalities are :
2x + 8 > 18
2c + 8 < 18
Inequality 1 : 2x + 8 > 18
Simplify
Subtract 8 from both side :
2x + 8 - 8> 18 - 8
2x > 10
Divide both side by 2
x > 5
Inequality : 2c + 8 < 18
2c + 8 < 18
Subtract 8 from both side:
2c + 8 - 8 < 18 - 8
2c < 10
Divide both side by 2:
2c/2 < 10/2
c < 5
So, the solution is x > 5 and c < 5
So, equation will be : c < x < 5
The Smith’s and the Jones are neighbors. They both have a tax rate of 28.5 mills. The Smith’s house is assessed at $80,000. The Jones’ house is assessed at $67,000. How much more do the Smith’s pay in property tax?
Given
Tax rate = 28.5 mills
Smith's house is accessed at $80,000
Jones's house is accessed at $67,000
Property taxes are calculated by multiplying the assessed, taxable property value by the mill rate and then dividing that sum by 1,000.
The formula is given by:
[tex]Property\text{ tax levied on property = }\frac{mill\text{ rate }\times taxable\text{ property value}}{1000}[/tex]Property tax for the Smith's:
[tex]\begin{gathered} =\text{ }\frac{28.5\text{ }\times\text{ 80000}}{1000} \\ =\text{ 2280} \end{gathered}[/tex]Property tax for the Jones':
[tex]\begin{gathered} =\frac{28.5\text{ }\times\text{ 67000}}{1000} \\ =\text{ 1909.5} \end{gathered}[/tex]The extra amount the Smith's pay is the difference in the tax levied on Smith and Jones:
[tex]\begin{gathered} =\text{ 2280 - 1909.5} \\ =\text{ 370.5} \end{gathered}[/tex]Hence, the Smith's pay $370.5 more than the Jones'
Jessie has 5 dogs. 2 of them are male and 3 of them are female. What percent of the dogs are male?
Given
Jessie has 5 dogs
2 are male
3 are female
Procedure
What percent of the dogs are male?
Male dogs
[tex]\frac{2\text{males}}{5\text{ total}}=0.4=40\text{ \%}[/tex]40 % of dogs are male
i need help with a test prep problem
The diameter = 2 times the radius
radius = diameter / 2
radius = 25.3/2
radius = 12.65 cm
Result radius = 12.65 cm
I need help with my math
Please provide the question.
We are asked to select the mathematical expressions that represent 40% of 84
We then recall that the mathematical form of 40% is in fact 40 / 100 = 0.4
Then, 40% of 84 can be written in math terms as:
40/100 times 84 = 40/100 * 84
or also
0.4 times 84 = 0.4 * 84
Therefore there are TWO options we can select in the list of possible answers:
Answer C and answer E
Find the difference of 7,419 and 5,267
Answer:
2,152
Step-by-step explanation:
So to find this all you have to do is subract 7,419 and 5,267 to get the answer of 2,152
Hope This Helps <3 <3